{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "214089",
    "entityType": "User",
    "nonce": "0xaaa949c77ca7bdb6a71f8a684f3685b423eb556c6c3a2136557b385094b1783e",
    "signature": "0xc18888be9e8e26ea4f07dc533fc531bab2adb60cac08629162eed0d93db21037587f0c8ed6916744bdb01ed59c9f0801cfe76a4c19dc74da9e2914799d117bf71c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}